2 years ago

Take away 0 from any number tell the rule you discovered

1 answer:

8 0

This is the fundamental zero additive rule
x - 0 = x
which means that for the set of real numbers, there exist a number such that if added (or subtracted) from any other will not affect such number.

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(x^2-4x)^2+7x^2-28x+12=0

Valentin [98]

Answer:

$x^4-9x^2-28x=-12$

Step-by-step explanation:

$(x^2-4x)^2+7x^2-28x+12=0$

$(x^4-16x^2)+7x^2-28x=-12$

$x^4-9x^2-28x=-12$

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3 years ago

Help me solve this... i have a time limit so answer fast!!!

coldgirl [10]

Answer:

Hypotenuse² = Base² + Altitude²

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An object is dropped from a height of 400 feet. The amount of time, in seconds, the object takes to hit the ground can be found

lidiya [134]

-16t^2+400=0

16t^2=400

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$\sqrt{16t^2} =\sqrt{400}$

4t=20

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t=5

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3 years ago

8/9 - 2/3 what is the answer i need help

aivan3 [116]

2/9 is the answer!! (:

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2 years ago

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